I am very old and maybe something changed : pH ( nothing to do with % ) used to be " negative the log ( base 10) of the hydrogen ion concentration in g-moles per liter of water" . Because it is a negative, the smaller the pH the greater the number on hydrogen ions. So pH of 1 means a lot of H ions and pH 13 means much fewer H ions. Jul 19, 2016 · This corresponds to the fact that you have "pH"_2 - "pH"_1 = 12 - 8 = color(red)(4) Simply put, a solution that has a pH that is color(red)(4) units lower than the pH of a second solution will have a concentration of hydronium cations that 10^color(red)(4) times higher than that of the second solution.
One liter of a solution of pH 2 has how many more hydrogen ions (H?) than 1 L of a solution of pH 6? A) 4 times more B) 16 times more C) 40,000 times more D) 10,000 times more E) 100,000 times more Answer: D drinks) and assessed their pH. They used a pH meter to measure the pH of each beverage in triplicate immediately after it was opened at a temperature of 25 C. The authors recorded the pH data as mean (standard deviation). Results. Most (93%, 354 of 379) beverages had a pH of less than 4.0, and 7% (25 of 379) had a pH of 4.0 or more.
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